ZOOTAXA 1902 A revision of Northern Vietnamese species of the ant genus Pheidole (Insecta: Hymenoptera: Formicidae: Myrmicinae) KATSUYUKI EGUCHI Magnolia Press Auckland, New Zealand Katsuyuki Eguchi A revision of Northern Vietnamese species of the ant genus Pheidole (Insecta: Hymenoptera: Formicidae: Myrmicinae) (Zootaxa 1902) 118 pp.; 30 cm. 15 Oct. 2008 ISBN 978-1-86977-291-8 (paperback) ISBN 978-1-86977-292-5 (Online edition) FIRST PUBLISHED IN 2008 BY Magnolia Press P.O. Box 41-383 Auckland 1346 New Zealand e-mail: [email protected] http://www.mapress.com/zootaxa/ © 2008 Magnolia Press All rights reserved. No part of this publication may be reproduced, stored, transmitted or disseminated, in any form, or by any means, without prior written permission from the publisher, to whom all requests to reproduce copyright material should be directed in writing. This authorization does not extend to any other kind of copying, by any means, in any form, and for any purpose other than private research use. ISSN 1175-5326 (Print edition) ISSN 1175-5334 (Online edition) 2 · Zootaxa 1902 © 2008 Magnolia Press EGUCHI Zootaxa 1902: 1–118 (2008) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2008 · Magnolia Press ISSN 1175-5334 (online edition) A revision of Northern Vietnamese species of the ant genus Pheidole (Insecta: Hymenoptera: Formicidae: Myrmicinae) KATSUYUKI EGUCHI Research Fellow, the Institute of Tropical Medicine, Nagasaki University / Collaborative Researcher, the Kagoshima University Museum. Mailing address: c/o Prof. Taro Yamamoto, Department of International Health, the Institute of Tropical Medicine, Nagasaki Univer- sity, Nagasaki 852-8523, JAPAN. E-mail: [email protected] Table of contents Abstract ...............................................................................................................................................................................4 Introduction .........................................................................................................................................................................4 Materials and methods ........................................................................................................................................................5 Synopsis of Indo-Chinese species of the genus Pheidole ................................................................................................... 6 Synonymic list of Pheidole in Northern Vietnam ...............................................................................................................6 Key to species of N. Vietnanmese Pheidole ....................................................................................................................... 8 Pheidole species occurring in N. Vietnam ........................................................................................................................ 11 Pheidole capellinii Emery ..................................................................................................................................... 11 Pheidole colpigaleata Eguchi ................................................................................................................................14 Pheidole dugasi Forel ............................................................................................................................................17 Pheidole elongicephala sp.n...................................................................................................................................20 Pheidole fervens F. Smith ......................................................................................................................................24 Pheidole fervida F. Smith ......................................................................................................................................28 Pheidole fortis Eguchi ...........................................................................................................................................31 Pheidole foveolata Eguchi .....................................................................................................................................34 Pheidole gatesi (Wheeler) ......................................................................................................................................37 Pheidole hongkongensis Wheeler ..........................................................................................................................40 Pheidole indosinensis Wheeler stat.n. ..................................................................................................................43 Pheidole laevicolor Eguchi ....................................................................................................................................46 Pheidole laevithorax sp.n. .....................................................................................................................................49 Pheidole magna Eguchi .........................................................................................................................................52 Pheidole megacephala (Fabricius) ........................................................................................................................55 Pheidole noda F. Smith ..........................................................................................................................................59 Pheidole ochracea sp.n. ........................................................................................................................................63 Pheidole parva Mayr .............................................................................................................................................66 Pheidole pieli Santschi ...........................................................................................................................................70 Pheidole plagiaria F. Smith ...................................................................................................................................73 Pheidole planifrons Santschi ................................................................................................................................. 77 Pheidole rabo Forel ............................................................................................................................................... 80 Pheidole rugithorax sp.n. ......................................................................................................................................84 Pheidole smythiesii Forel .......................................................................................................................................87 Pheidole taipoana Wheeler ...................................................................................................................................90 Pheidole tjibodana Forel .......................................................................................................................................93 Pheidole tumida sp.n. ............................................................................................................................................ 97 Pheidole vieti sp.n. ..............................................................................................................................................100 Accepted by J. Longino: 4 Jun. 2008; published: 15 Oct. 2008 3 Pheidole vulgaris Eguchi .....................................................................................................................................103 Pheidole yeensis Forel .........................................................................................................................................107 Pheidole zoceana Santschi ................................................................................................................................... 110 Acknowledgements ......................................................................................................................................................... 114 References ....................................................................................................................................................................... 114 Abstract Northern Vietnamese species of the ant genus Pheidole (Myrmicinae: Pheidolini) were revised, and 31 species including six new species were recognized: capellinii Emery, colpigaleata Eguchi, dugasi Forel, elongicephala sp.n., fervens F. Smith, fervida F. Smith, fortis Eguchi, foveolata Eguchi, gatesi (Wheeler), hongkongensis Wheeler, indosinensis Wheeler stat.n., laevicolor Eguchi, laevithorax sp.n., magna Eguchi, megacephala (Fabricius), noda F. Smith, ochracea sp.n., parva Mayr, pieli Santschi, plagiaria F. Smith, planifrons Santschi, rabo Forel, rugithorax sp.n., smythiesii Forel, taipoana Wheeler, tjibodana Forel, tumida sp.n., vieti sp.n., vulgaris Eguchi, yeensis Forel, zoceana Santschi. The fol- lowing cases of synonymy were resolved: Myrmica agilis F. Smith as a junior synonym of Pheidole megacephala; Pheidole rhombinoda var. stella Forel, P. rhombinoda var. formosensis Forel, P. rhombinoda var. taprobanae Forel, and P. nodus var. flebilis Santschi as junior synonyms of P. noda; Pheidole peguensis r. yomensis as a junior synonym of P. plagiaria; and Pheidole smythiesii var. bengalensis Forel and P. bhavanae Bingham as junior synonyms of P. smythiesii. The lectotype